Aut cum scuto aut in scuto
I've done Hell's revenge and the bathtubs but was too chicken to do that one because it would have dented the crap out of my rig -- and I would have needed to have been winched out.
I have respect for guys that will throw their rig into that hole, and then get out.
It's better handled by a buggy than a modified rig mostly because of the weight of even a cut down toy. I've seen buggies do them and they just roll through.
But more challenging with a factory rig properly modified. I wonder what the most unlikely rig is that has gone in and come out successfully.